M-19 Twin 40mm SP AAA

Military Theme
T-Shirts & Stuff
Visit Olive-Drab.com's sister site for
over 10,000 free military vehicle photos!
Today in WW II: 9 Dec 1940 British North African offensive begins against Italian forces in Somaliland, Egypt and Libya.  More 
9 Dec 1941 HMS Prince of Wales and HMS Repulse sunk by Japanese air attacks of Malayan coast.
9 Dec 1942 Renewed attacks by Australian forces break through and take Gona Village, Papua New Guinea.
9 Dec 1945 Gen. George S. Patton, Jr. severely injured in a collision between his staff car and an Army truck, while on a hunting trip in the country outside Mannheim, Germany.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

40mm Gun Motor Carriage, M19

The self-propelled M19 40mm Gun Motor Carriage consisted of two turret-mounted 40mm Bofors guns on a lengthened M24 Chaffee light tank chassis. It replaced the halftrack mounted AAA of WW II and was itself replaced by the M-42 Duster in the 1950s.

The M19 twin 40mm Gun Motor Carriage was standardized 11 May 1944. Production by Cadillac and Massey-Harris began in April 1945, too late for material participation in World War II. By the end of 1945 production, 300 units had been produced.

The M19 had twin Cadillac 44T24 110hp V8 engines, relocated behind the driver's compartment. The power-operated turret was mounted on the M19's rear deck. The Bofors guns were clip-fed with a 120rpm rate of fire. 252 rounds were carried by the M19 with an optional 320 more in the M28 ammunition trailer. A crew of six operated the M19.

Radio equipment and a 200-amp auxiliary generator were added to the M19, changing the designation to M19A1, recognizable by equipment blisters that interrupt the smooth, rounded lines of the original M19 turret. In 1948, remaining M19 GMCs were rebuilt as M19A1 units.

U.S. Army M19 Twin 40mm Gun Motor Carriage with M28 ammunition trailer, Korea, circa 1950
U.S. Army M19 Twin 40mm Gun Motor Carriage with M28 ammunition trailer, Korea, circa 1950.

U.S. Army M19 Twin 40mm Gun Motor Carriage, circa 1950
U.S. Army M19 Twin 40mm Gun Motor Carriage, circa 1950.

M-19A1 Twin 40mm Gun Carriage.  Photo: Courtesy of John Buckley. Thanks to Sam Berliner, III for correct ID
M-19A1 Twin 40mm Gun Carriage. Photo: Courtesy of John Buckley. Thanks to Sam Berliner, III for correct ID.

More To Explore